Kit contains a non-contact voltage tester and receptacle tester, Dual range NCVT-2P automatically detects and indicates low voltage (12-48V AC) and standard voltage (48 - 1000V AC), NCVT-2P provides non-contact detection of standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires, CAT IV 1000 Volt rating provides expanded operation and protection, Receptacle Tester is designed to detect the most common wiring problems in standard receptacles, Conditions the Receptacle Tester indicates: wiring correct, open ground, reverse polarity, open hot, open neutral, hot/ground reversed